Printing-press



UNITED srarnsrirnnr OFFICE.

O. E. VESTON, OF ROXBURY, MASSACHUSETTS.

PRINTING-PRESS.

Specification of Letters Patent No. 26,869, dated January 17, 1860. i

To all whom 'it may concern.'

Be it known that I, OLIVER E. VVEsToN, of Roxbury, in the county ofNorfolk and State of Massachusetts, have invented a new and ImprovedPrinting-Press; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theannexed drawings, making a part of this specification, in which- Figurel, is a side elevation of my invention; Fig. 2, a side sectional view ofditto taken in t-he line x, Fig. 3; Fig. 3, a hori zontal section ofditto taken in the line y, y, Fig. l; Fig. 4:, a detached view of aposition of the working parts of ditto.

Similar letters of reference indicate cor responding parts in theseveral figures.

To enable those skilled in the art to fully understand and construct myinvention rI will proceed to describe it.

A, represents the frame of the press which is formed of two side piecesa, c, connected at their upper ends by an arch b, and at about theircenters by a traverse bar 0. This frame may be constructed of cast iron.

B, represents the form bed in which the form (Z is placed. This bed isiitted on ways e, e which rest at one end on the traverse bar c, theopposite ends resting on a traverse bar j', which is supported by anupright O. The form bed has no device whatever attached to it, it beingseparate from all the working parts.

D, represents a carriage which is simply a quadrilateral frame fitted onways g, g, secured to the traverse bars c, f, as c, e, and parallelwith, but above them, and at the outer sides. The carriage D, has a rackE, attached longitudinally to one side of it, and into this rack apinion It gears, said pinion being on one end of a shaft E, which isplaced in bearings z', underneath the ways g, g. On each end of theshaft F, there is placed a pulley y', around which cross bands la, la,pass. Said bands also passing around pulleys Z, Z, at the ends of aroller G, the bearings of which are at the lower ends of upright rods m,m, fitted in suitable guides and attached at their upper ends to springsn, n, which have a tendency to keep the roller G, bearing against theunder side of a cylinder H, the bearings 0, of which are attached to theends of the ways g, g.

Just below the roller G, and parallel with it an ink-fountain I, isplaced. This inkfountain rests on horizontal bars a* ax attached to thetraverse bar c, and within the ink-fountain a roller p, is placed andallowed to rotate, freely, the axis of said roller having a ratchet g,at one end.

J, is a pawl which is attached to a lever r, in a bar s, secured to abrace t, attached to the framing. To the lever r, a rod u, is attachedsaid rod having a weight and roller o, at its outer end. To the frontpart of the rack E, and at its outer side an inclined ledge a', isattached and on the front part of the carriage D, two ink rollers b, areplaced.

- The axis of the cylinder I-I, has a ratchet K, at one end. Thisratchet is grooved cir.- cumferentially so that a cord O may pass aroundit, one end of said cord having a weight cl attached and the other beingsecured to the hand lever L, of the press proper guide pulleys c beingemployed for the cord to pass under and over; see Fig. 4. To the cord cand in the vicinity of the ratchet K, a cross pin e', is attached theuse of which will be presently shown.

M, is a distributing roller the bearings f f', of which are attached toslides g', that are fitted and work on guides 71, attached to the endsof the ways g, g. The slides g have spiral springs 7L", connected tothem which springs have a tendency to keep the roller M, against thecylinder H. One end of the roller M, is grooved spirally right and leftas shown at z" and a pin is fitted in the grooves.

N, is the platen which has guide rods y' attached with spiral springsk', on them, said springs having a tendency to keep the platen elevated.This platen is operated as usual by means of a toggle. O, and hand leverL. Through the front and back ends of the platen N, screws m pass saidscrews being near the sides of the platen as shown clearly in Fig. 3,and directly over projections vt, on the ends of the form-bed B.

To the front end of the carriage D, a frisket P, is attached by jointso. This frisket is formed of a quadrilateral frame p having a frame g',within connected to springs r which have a tendency to keep the frame g,against buttons s attached to the back and front ends of the largerframe p.

Q, is a feed board attached to the framing A, just above the platen N,and R, is the board which receives the printed sheets and is placed atthe frontend of the ways, g, g.`

spring a attached to each end of it, the

springs causing the plate to bear on the roller p.

The operation is as follows: The form d, is properly adjusted in the bedB, and the frame g of the frisket is covered with paper an opening beingmade in it suiiiciently large to repose the form when the frisket isplaced over it. The blank sheets of paper vare placed on the feed boardQ, the bed B, shoved underneath the platen N, and a blank sheet of paperis placed on the frame g, of the frisket. rIhe operator then moves thecarriage D, underneath the platen by rotating the shaft F, by means of acrank and as the shaft F, rotates the roller G, is also rotated by bandsla, lc. As the carriage D, reaches the end of its forward movement itdepresses the springs n, n, and thereby presses down the roller Gr, onthe roller p, in the tink-fountain the roller G, being thus charged withink from p, the latter leaving the ink evenly distributed on it by thepressure plate t. The rollers b b" also at the termination of theforward movement of Y the carriage D, pass over on the cylinder H,

and receive a supply of ink therefrom the cylinder H, being rotated bythe contact of roller G, as the former receivesthe ink from the latter.The ink is properly distributed on the cylinder H, by the roller N,which is rotated by contact with cylinder H, and has a vibratingmovement given it in consequence of the pin 77X, working in the doublespiral groove i', at one end of the roller. The'operator then grasps thelever L, and forces down the platen N, on the frisket so that the blanksheet'will be pressed on the form and receive the impression. As thelever L, is actuated to force down the platen the cord c rotates theratchet K, in consequence Vof the pin e engaging with the ratchet andconsequently the ink rollers b, will be properly charged with ink fromH, said rollers inking the form al, as the carriage D, is moved back.The roller p, is turned a certain distance just previous to thedepression of the roller G, in consequence of the inclined ledge a',raising the rod u, and thereby actuating the pawl J, which operates onthe ratchet g.- When the hand of the operator is taken from the lever L,the.. springs. Ici, elevate ,the platen throw back the lever L, and theweight d draws theY pin t', free from the ratchet K, the

iweight touching the floor and leaving the cord loose so that thecylinder H will be free to rotate.

In case theform d, is placed in 'the bed D, at one side as might be thecase if several forms are at first locked in the same bed, and printedfrom all -at the same time until the requisite number of impressions isYtaken from certain forms and these `then being removed leaving theother at one side .of the bed. .In this case an even pressure would notbe obtained without the screws m', and Y* these by being properlyadjusted or set' will form an even bearing at each part of lthe platenat whatever point underneath the platen the form may be placed.

It will be seen that by having the frisket detached from the bed B, andplaced on a separate carriage the manipulation of the press is renderedextremely easy as-the bed B, which is comparatively heavy does notrequire tol be removed after the form is adjusted in it and the bedplaced under the platen.

When the carriage D, is moved outward or back to its original positionthe frisket P, is turned over on the board R, and the printed sheetdeposited thereon. The frisket is then again turned over on the carriageD, ablank sheet adjusted thereon and the operation repeated.

- Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is-

l. I claim the combination with the horizontally moving type bed B, andplaten N, of a hand press, of a horizontally moving frisket P, arrangedand operating substantially as and for the purpose herein shown anddescribed.

2. I claim the combination of the inking apparatus and frisket P, withthe shaft F, substantially as and for the purposes herein shown anddescribed.r

3. I claim `the employment of the frisket as a fly for the sheets,substantially as herein shown and described.

4. The employment in combination with the platen and type bed of theadjustable bearing screws M, to equalize the face of the platen asherein shown and described.

OLIVER E. VESTON.

Witnesses:

C. M. HUGHES, M. M. LIvINcsToN.

